Can't change ChowCentaur params

[Forevian]

from pedalboard import load_plugin, VST3Plugin
cent = load_plugin('/usr/lib/vst3/ChowCentaur.vst3')
cent([0.0, 0.1], sample_rate=44100)
cent.gain = 0.0
print(cent.gain) # -> 0.0
cent([0.0, 0.1], sample_rate=44100)
print(cent.gain) # -> 0.5

The audio is the same, always with the default parameters which it resets upon processing.
Am I doing something wrong here, or is this a bug, or just the plugin itself not being compatible?

[psobot]

Thanks @Forevian! Which version of Pedalboard are you running? (You can check with pedalboard.__version__.) Using Pedalboard 0.3.8 and ChowCentaur v1.4.0, I'm unable to reproduce this bug on macOS or Linux; changing the gain does change the output, even with the example you've provided:

>>> plugin = pedalboard.load_plugin("/usr/lib/vst3/ChowCentaur.vst3")
>>> plugin([0.0, 0.1], sample_rate=44100)
array([ 0.        , -0.00087224], dtype=float32)
>>> plugin.gain = 0.0
>>> plugin([0.0, 0.1], sample_rate=44100)
array([ 0.        , -0.00260613], dtype=float32)

[Forevian]

Thank you, and sorry for the false alarm, it was indeed an old version (0.3.6), and updating solved it. I just didn't realize that I was using a VM with an older installation for certain experiments.